I think it's the opposite logic for the designers actually. I think they wanted to give the illusions of short overhangs while also helping with scraping by truncating the corners. Had they sloped or sharpened the hoodline/nose further it would have either made the headlight height fall under federal regulation or they could have extended the nose like the 458 or first gen in effect losing the short overhang. The actual hoodline height of the new NSX is probably right at the minimal required by law. Here is a top view comparison to assist in what I'm talking about:
You can see the new NSX's is really long, even longer than the first and as long as the Aventador. However the arrow-shape tapering of the rear end gives it the illusion of a short/stubby rear end, but in fact, it has a much longer tail than the original NSX's rear end which is known for it's prominent dragon like tail. Had the rear end of the new NSX been more square-ish like typicaly sports cars, it would have come across as less rounded and more prominent at the quarter angle shots. This is also why from far away it looks better because there is less perspective and distortion to the geometry. The same can be said for most cars also.
It's a bold and unique move on Honda's part for sure as most sports cars just go with the traditional square wedge shape like the first gen NSX, but I think in future revisions they should revisit a new take on how to keep the NSX looking unique and lose the short-overhang/arrow style tail given that this is the source of much criticism, even if most people can't articulate why they feel the way they do about the new NSX.